Bypass

• Bypass is designed to help manage low-power lighting that's connected to automation technology such as Zigbee or Z-Wave. Such lighting may randomly brighten as voltage changes on your power system - Bypass helps prevent this.
• Made for Nano Dimmer, Bypass is compatible with other such dimming technology such as Fibaro Dimmer.

FAQs and further resources.
The following resources will help you make an informed decision about purchasing Aeotec's Nano Dimmer. 

• Bypass doesn't contain any wireless technology and this one version works for all voltages and all regions. 
  
• Aeotec maintains Nano Dimmer's user guide and setup information at that link.